<script setup>
import DetailHot from './components/DetailHot.vue'
import { getGoodsDetailService } from '@/api/goods'
import { ElMessage } from 'element-plus'
import { onMounted, ref } from 'vue'
import { useRoute } from 'vue-router'
import { useCartStore } from '@/stores/modules/cart'

const loading = ref(true)
const goods = ref({})
const route = useRoute()
const getGoodsDetail = async () => {
  const res = await getGoodsDetailService(route.params.id)
  // console.log(res)
  goods.value = res.data.result
  // console.log(goods.value)
}
// 一进页面就调用
onMounted(() => {
  getGoodsDetail()
})

// sku组件触发时：sku组件首先需要认识它的props 和
const skuObj = ref({})
const skuChange = (sku) => {
  // 只有当两个参数都选中时，才返回有效数据
  // console.log(sku)
  skuObj.value = sku
}

// 商品计数 count
const count = ref(1)
const countChange = (count) => {
  // console.log(count)
}

// 点击 -> 加入购物车
const cartStore = useCartStore()
const addCart = () => {
  // 通过判断skuId 判断是否选中有效规格
  if (skuObj.value.skuId) {
    cartStore.addCart({
      id: goods.value.id, // 商品id
      name: goods.value.name, // 商品名称
      picture: goods.value.mainPictures[0], // 商品图片
      price: goods.value.price, // 商品价格
      count: count.value, // 商品数量
      skuId: skuObj.value.skuId, // 商品规格id
      attrsText: skuObj.value.specsText, // 商品规格文字
      selected: true, // 商品是否选中
    })
  } else {
    ElMessage.warning('请选择规格')
  }
}
</script>

<template>
  <div>
    <div class="xtx-goods-page" v-if="goods.categories">
      <div class="container">
        <div class="bread-container">
          <el-breadcrumb separator=">">
            <!-- 这里有一个小bug: goods一开始是{}  {}.categories -> undefined 会报错
            1. 可选链语法： ?.  存在才访问
            2. v-if手动控制渲染时机，保证只有数据存在才渲染
          -->

            <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item :to="{ path: `/category/${goods.categories[1].id}` }"
              >{{ goods.categories[1].name }}
            </el-breadcrumb-item>
            <el-breadcrumb-item :to="{ path: `/category/sub/${goods.categories[0].id}` }"
              >{{ goods.categories[0].name }}
            </el-breadcrumb-item>
            <el-breadcrumb-item>{{ goods.name }}</el-breadcrumb-item>
          </el-breadcrumb>
        </div>
        <!-- 商品信息 -->
        <div class="info-container">
          <div>
            <div class="goods-info">
              <div class="media">
                <!-- 图片预览区 -->
                <image-view :imageList="goods.mainPictures"></image-view>

                <!-- 统计数量 -->
                <ul class="goods-sales">
                  <li>
                    <p>销量人气</p>
                    <p>{{ goods.salesCount }}+</p>
                    <p><i class="iconfont icon-task-filling"></i>销量人气</p>
                  </li>
                  <li>
                    <p>商品评价</p>
                    <p>{{ goods.commentCount }}+</p>
                    <p><i class="iconfont icon-comment-filling"></i>查看评价</p>
                  </li>
                  <li>
                    <p>收藏人气</p>
                    <p>{{ goods.collectCount }}+</p>
                    <p><i class="iconfont icon-favorite-filling"></i>收藏商品</p>
                  </li>
                  <li>
                    <p>品牌信息</p>
                    <p>{{ goods.brand.name }}</p>
                    <p><i class="iconfont icon-dynamic-filling"></i>品牌主页</p>
                  </li>
                </ul>
              </div>
              <div class="spec">
                <!-- 商品信息区 -->
                <p class="g-name">{{ goods.name }}</p>
                <p class="g-desc">{{ goods.desc }}</p>
                <p class="g-price">
                  <span>{{ goods.oldPrice }}</span>
                  <span>{{ goods.price }}</span>
                </p>
                <div class="g-service">
                  <dl>
                    <dt>促销</dt>
                    <dd>12月好物放送，App领券购买直降120元</dd>
                  </dl>
                  <dl>
                    <dt>服务</dt>
                    <dd>
                      <span>无忧退货</span>
                      <span>快速退款</span>
                      <span>免费包邮</span>
                      <a href="javascript:;">了解详情</a>
                    </dd>
                  </dl>
                </div>
                <!-- sku组件 -->
                <xtx-sku :goods="goods" @change="skuChange"></xtx-sku>

                <!-- 数据组件 -->
                <el-input-number v-model="count" :min="1" @change="countChange" />
                <!-- 按钮组件 -->
                <div>
                  <el-button size="large" class="btn" @click="addCart"> 加入购物车 </el-button>
                </div>
              </div>
            </div>
            <div class="goods-footer">
              <div class="goods-article">
                <!-- 商品详情 -->
                <div class="goods-tabs">
                  <nav>
                    <a>商品详情</a>
                  </nav>
                  <div class="goods-detail">
                    <!-- 属性 -->
                    <ul class="attrs">
                      <li v-for="item in goods.details.properties" :key="item.value">
                        <span class="dt">{{ item.name }}</span>
                        <span class="dd">{{ item.value }}</span>
                      </li>
                    </ul>
                    <!-- 图片 -->
                    <img v-for="pic in goods.details.pictures" :key="pic" :src="pic" alt="" />
                  </div>
                </div>
              </div>
              <!-- 24热榜+专题推荐 -->
              <div class="goods-aside">
                <detail-hot :titleHot="1"></detail-hot>
                <detail-hot :titleHot="2"></detail-hot>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <el-empty
      v-loading="loading"
      element-loading-text="正在加载中..."
      description="没有数据"
      v-else
    ></el-empty>
  </div>
</template>

<style scoped lang="scss">
.xtx-goods-page {
  .goods-info {
    min-height: 600px;
    background: #fff;
    display: flex;

    .media {
      width: 580px;
      height: 600px;
      padding: 30px 50px;
    }

    .spec {
      flex: 1;
      padding: 30px 30px 30px 0;
    }
  }

  .goods-footer {
    display: flex;
    margin-top: 20px;

    .goods-article {
      width: 940px;
      margin-right: 20px;
    }

    .goods-aside {
      width: 280px;
      min-height: 1000px;
    }
  }

  .goods-tabs {
    min-height: 600px;
    background: #fff;
  }

  .goods-warn {
    min-height: 600px;
    background: #fff;
    margin-top: 20px;
  }

  .number-box {
    display: flex;
    align-items: center;

    .label {
      width: 60px;
      color: #999;
      padding-left: 10px;
    }
  }

  .g-name {
    font-size: 22px;
  }

  .g-desc {
    color: #999;
    margin-top: 10px;
  }

  .g-price {
    margin-top: 10px;

    span {
      &::before {
        content: '¥';
        font-size: 14px;
      }

      &:first-child {
        color: $priceColor;
        margin-right: 10px;
        font-size: 22px;
      }

      &:last-child {
        color: #999;
        text-decoration: line-through;
        font-size: 16px;
      }
    }
  }

  .g-service {
    background: #f5f5f5;
    width: 500px;
    padding: 20px 10px 0 10px;
    margin-top: 10px;

    dl {
      padding-bottom: 20px;
      display: flex;
      align-items: center;

      dt {
        width: 50px;
        color: #999;
      }

      dd {
        color: #666;

        &:last-child {
          span {
            margin-right: 10px;

            &::before {
              content: '•';
              color: $xtxColor;
              margin-right: 2px;
            }
          }

          a {
            color: $xtxColor;
          }
        }
      }
    }
  }

  .goods-sales {
    display: flex;
    width: 400px;
    align-items: center;
    text-align: center;
    height: 140px;

    li {
      flex: 1;
      position: relative;

      ~ li::after {
        position: absolute;
        top: 10px;
        left: 0;
        height: 60px;
        border-left: 1px solid #e4e4e4;
        content: '';
      }

      p {
        &:first-child {
          color: #999;
        }

        &:nth-child(2) {
          color: $priceColor;
          margin-top: 10px;
        }

        &:last-child {
          color: #666;
          margin-top: 10px;

          i {
            color: $xtxColor;
            font-size: 14px;
            margin-right: 2px;
          }

          &:hover {
            color: $xtxColor;
            cursor: pointer;
          }
        }
      }
    }
  }
}

.goods-tabs {
  min-height: 600px;
  background: #fff;

  nav {
    height: 70px;
    line-height: 70px;
    display: flex;
    border-bottom: 1px solid #f5f5f5;

    a {
      padding: 0 40px;
      font-size: 18px;
      position: relative;

      > span {
        color: $priceColor;
        font-size: 16px;
        margin-left: 10px;
      }
    }
  }
}

.goods-detail {
  padding: 40px;

  .attrs {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 30px;

    li {
      display: flex;
      margin-bottom: 10px;
      width: 50%;

      .dt {
        width: 100px;
        color: #999;
      }

      .dd {
        flex: 1;
        color: #666;
      }
    }
  }

  > img {
    width: 100%;
  }
}

.btn {
  margin-top: 20px;
}

.bread-container {
  padding: 25px 0;
}
</style>
